package Day2025_04_12;

public class Demo02 {
    public static void main(String[] args) {
        int n = 0;
        for (int i = 1; i <= 2025; i++) {
            long ret = (long) Math.pow(i, 3);
            if (ret % 10 == 3) {
//                System.out.println(i);
                n++;
            }
        }
        System.out.println(n);
    }
}
